Leadership
Mickey Bresman
- John Doe
- Feb 24, 2023
Mickey Bresman is CEO and co-founder of Semperis, a leading provider of enterprise identity protection, threat research, and incident response services headquartered in Hoboken, New Jersey. Among the top three fastest-growing cybersecurity companies in the U.S., according to Inc. 5000, Semperis is widely recognized to offer the industry’s most comprehensive…
Guy Teverovsky
- John Doe
- Feb 01, 2023
For more than a decade, Guy has worked closely with multiple large-scale enterprise customers. Guy specializes in the design, architecture, implementation and optimization of identity access management (IAM)-related technologies. Prior to co-founding Semperis, Guy was a Senior Premier Field Engineer at Microsoft, acting as lead and mentor for Active…
Matan Liberman
- John Doe
- Feb 01, 2023
Matan, a co-founder of Semperis, leads the company’s Israeli arm as well as research and development. He began his career as a software engineer in the Israel Defense Force, implementing mission-critical systems for the office of the Israeli Prime Minister. Matan was then promoted to Development Team Leader. In…
Sharon Vardi
- John Doe
- Feb 01, 2023
As Semperis COO, Sharon is responsible for the company’s operational execution and partnership. Prior to joining Semperis, Sharon helped to build and scale early-stage technology companies such as Trusona, Prevoty (acquired by Imperva), and Securonix. He also served as CIO at organizations such as Ernst & Young. Sharon has…
James Doggett
- John Doe
- Feb 01, 2023
James (Jim) is a veteran in the information security and risk space. He previously served as partner at Ernst & Young, where he helped build the company's cybersecurity practice during his 27-year tenure. Most recently, Jim worked as CISO and head of US operations at Panaseer. He has also…
Alex Weinert
- Karlee Kilker
- Apr 29, 2025
Alex drives Semperis’ overall product vision and innovation, driving product strategy and execution to meet customer needs. Prior to Semperis, Alex was Vice President of Identity Security at Microsoft, leading its team of identity security experts, responsible for protecting billions of users signing into millions of apps almost 45 billion…
Jeff Bray
- Karlee Kilker
- Jan 08, 2024
Jeff leads finance, accounting, legal, corporate development and procurement for Semperis, where he has been CFO since 2024. Prior to Semperis, Jeff led finance teams at cybersecurity vendors Imprivata, Rapid7, and Invicti Security, helping them grow into scalable software businesses. Jeff began his career in investment management, with over 20 years…
Mike DeGaetano
- Karlee Kilker
- Sep 13, 2023
Mike DeGaetano joined Semperis as Chief Revenue Officer in August 2023. In this role, Mike is responsible for leading the global sales and partner organizations. For over 17 years, Mike has held various senior sales roles in the cybersecurity industry. He began his journey at Symantec and subsequently led…
Thomas LeDuc
- John Doe
- Feb 01, 2023
As CMO, Thomas is responsible for all aspects of the company’s global marketing efforts. He oversees strategy and integrated marketing programs across brand, corporate, product, and customer marketing; demand generation; analyst relations; field and channel marketing activities; and sales development. Equal parts marketing strategist and growth hacker, Thomas is…
John Podboy
- Karlee Kilker
- May 07, 2026
John Podboy has more than 15 years of experience spanning cybersecurity, technology management, digital transformation, risk, and resilience. He has led large-scale security programs for federal agencies and global brands across retail, manufacturing, industrial, technology, media, and financial services. He has deep knowledge of the AI era and the escalating…
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